Zeppelin Flights. 1930 (November 11), Netherlands Flight postcard, franked by 5 air post stamps of the first issue (C.v. $273 for stamps on cover), tied by Schaan ds, Friedrichshafen ''10.11.30'' connection, blue and violet confirmation markings, mostly VF, Sieger #98 (Image)

Zeppelin Flights. 1931 (June 10), Vaduz-Lausanne Flight postcard and cover, franked by Zeppelin stamps of 1fr and 2f respectively, red confirmation cachet and all appropriate markings, arranged on pages from a Collection, VF, Sieger #100A, B, C.v. €600 (Image)

Zeppelin Flights. 1936 (May 6-9), Airship ''Hindenburg'' 1st NAF two covers and postcard, franked by Zeppelin stamps of 1fr carmine and 2fr violet, including complete set franking, tied by Triesenberg ''4.V.36'' ds, letter ''d'' red confirmation cachet and all appropriate markings, housed on pages from a Collection, VF, Sieger #408A, B, A/B, C.v. €470 (Image)